Working Magnetic Motor on you tube??

[vipond50]

@CLaNZeR,

Seems to me not only the dampers have to be around the stator equidistant from the other two stators but the first video shows that one of the dampers is closer to the stator than the other damper, not as in the picture you showed here.

Sean
Besides the Drawing being incorrect i.e. Stator layout, are u using brass to retain the Dampers instead of Nylon or plastic ?
UOther than that the rep looks Great 

Good Luck
Bill

Also did U base your rotor layout off of Jason's drawing or the original Mea's provided in the PDF?

Thanks again
Bill

I have not got a link, but i am sure Al replaced the nylon for brass as he had problems with the nylon holding up ..

Hi Craigy
Understandable, but the Pic's of the running device (updated center shaft and test pulleys) shows plastic not brass for the damper retainers
After all Sean is going for an accurate rep as i understand it.

Regards
Bill

[geodan]

No - wait.  That can't be right.  270 degrees per strobe would imply 810 degrees of rotation by the rotor  per frame, which would imply 2.25 revolutions in the stator per frame - but the stator clearly has moved a multiple of 360 degrees.  Maybe it's 270 degrees per frame and 1080 for the stator after all.  But, regardless, my question regarding acceleration and deceleration doesn't really change regardless how many actual (albeit multiple) revolutions the stator makes per frame.

every 90 degrees the rotor turns, the stator turns 360. its a 4:1 gear ratio.

Yes, you're right.  810 * 4 / 360 = 9.0 stator revolutions.  No remainder.

But, leaving my poor arithmetic skills aside for a moment, what about my question - doesn't anyone see something odd in the continuous nature of the stator revolution?  This entire project is hinged upon the notion that by varying the relationship between the rotor and stator magnets 'sticky spots' could be minimized.  That would imply that the stator magnet would have to slow down and speed up to avoid facing them directly.  But - it doesn't seem to in the video.  Can that be explained by the strobe?

Idonno... could that be happening between strobe / frames? over my head... (where's CSI when you need them?  )

[geodan]

That would imply that the stator magnet would have to slow down and speed up to avoid facing them directly.  But - it doesn't seem to in the video.  Can that be explained by the strobe?

I dont think there is enough information to determine it either way, the variation in speed could be so slight as to be unnoticeable.

does anyone have a way to tie lines to the rotor and stator on the vid clip so that we can get a better idea of the relationship between the two  in motion?....

[niente]

Here's a simple analysis (by using FEMM) of the torque of the rotor covering 45 degrees of the motion (then it repeats itself because of the symmetry).

When the fulcrum of the rotor and of the stator are connected with a line, and one of the magnets on the rotor is perpendicular to this line, the stator position shows a difference of about 25 degrees in respect of that line (as in the third Alsetalokin video). This fact is included in the simulation (visible here: http://www.metacafe.com/watch/1060658/oc_mpmm_magnetic_simulation/).

The simulation data and graph are included in the attached Excel document, and they show a total positive torque (it should be 0 if there were no self-rotation!). 

Sorry for any mistake I did! 

[EDIT] I made a little mistake in the Excel file, now the total number of samples is 449 (not 451) and the total torque is correct (not 222 but 11467!!) - I typed a ";" instead of a ":" in the sum formula  [/EDIT]

[geodan]

so the stator is supplying torque?